World champion speed skater Pavel Kulizhnikov failed his doping test, according to the athlete's coach, Dmitry Dorofeev — but the coach refused to say when or where the skater tested positive for the drug.

The World Anti-Doping Agency added the drug on their banned list on January 1, and while Dorofeev claims that Kulizhnikov took it last year before it became banned, it's not clear whether he did it knowingly after the first of the year.

Either way, the speed skater has to serve a doping ban now — and the five world championship gold medals he's won since the start of 2015 are just going to have to sit on the shelf!

For what it's worth, Kulizhnikov also served a doping ban from 2012 to 2014, after he tested positive for a separate drug… so, yeah…

And in a new interview published on Thursday, the college student admitted that she received a ton of hateful messages -- including death and rape threats -- following the crybaby candidate's digital tantrum.

The now-19-year-old explained to The Washington Post that she couldn't have anticipated the kind of backlash she received, saying: